Excavating-machine.



No. 880,826: PATENTED MAR. a, 1908.

T. RBISTAD.

EXGAVATING MACHINE.

APPLIUATION FILED APR. 29, 1907.

2 SHEBT$-SHEET 1.

PATENTED MAR; 3, 1908.

Y T. REISTAD'. BXGAVATING MACHINE.

APPLICATION FILED A1 R. 29, 1907.

2 sums-5111mm.

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W .arromi'mc 'Be'it'kuown that I, TORGELS "reinoj the-tang which it" is haue UNITED STATES Torrents airismbQor.

'ST. rA LZ MI N SOTA.

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seasoned TQ all whom it may concern. 1

REISTAD, a snb'ect of the King of Norway, residing-at St aid; in the county of Rainsey'and State of 'Min'I'iesota, have invented a new and useful Excavatin'grMachine, of which the following is a specification.

My i yeiition relates to excavating ma-; chinesj iandthe' bject is to provide a comparativelychca z but eiiicient machine for excavatin'gnin g'enemhbu t more specially for- '11s and grading roads and loading upon ac'entlwa ons'or cars by awayg %his' and otherobjects- I -iitt ailf by the ovelr construction "t'of parts illustrated in the Figured is a top orplanview vof exhangars e and some sand-cars upon atrack in posit onto be filled. Fig. 21s. a

'view of bed or frame sliding upon themain frame ndsiipportingthe'working.

' mechanism, an x frame- "F 318 a vertical'cross section on a fragment: .of' the main line'z'e'iin 1, 'iof-the slidingframe and the .fixedframe m which it moves- Figs-4 'isa side clevafion' of the machine and end elevation" ofits platform and of'the cars to be filled,- looking'from r' ht-to left in Fig. 1,-but with en i'ne'and boi er bnly in-dotted outs. lines 8.! water and'coal box omitted. -.l:Tig.

is a detail top view near w in Fig, 4. Fig.

,6 is-an. enlarged sectional view on the line '5; 'g in Fig. 4. Fig. 7 is a cross section or end View of the upper bar in Fig.- 5.

5 Referring to the drawing by reference numerals, 1 designates the base or body of the machine, an it consists of a'heavy platform supported on wheels 2, adapted to stand oil-rails 3 and to travel on ordinary railway rails during transportation. U on said platform is pivoted at 4 to-turn in iorizontal plane a bed-plate 5, held innormal position as in Fig. 1 by bolts 6, (see Fig. 3). In said hBd plate-s slides at 7 a frame plate 8 having two uprights 9, and t wo lugs 10, to which is pivoted sit 11a bracing frame 12 (best shown m -".-e.

in pres en'ts ahil-l side from the machine is taking earth and loading it Into --the car 14 on track 3. This is ac complished by two:- con eyers, .15'anid 16.-

The. cenveyer 15 is-comp sed of a frame 15,

jspecification of Letters Patent. lpplioation filed s arse. 1907. Serial No. 370.811

Patented Harch 3, 1908.

screws 18, screwed into a U-shuped piece 19, held in the frame 12 by bolts 20, which may slide up and down in slots 21 in the frame;

from accidental turning. 23 is a screw. fixed bars 26 of fthe'fralne and haviu and t e lower shaft .29 withchain-wheels'30, -whichen a e and drive two endless chains buckets 32 which may have teeth 50 and are adapted to dig and convey the earth and de more fully described.

gear 34' engaged by a bevel gear 35, I ed on a way 40 engaged by a slidable key fixed in a pulley-41,- which is guided between two of the bearings 39 and driven by a belt 42 from a pulley 43 fixed on the shaft of the engine 45"mounted on the platform and having a boiler 46, water tank-47 and coal box 48.

In frame ar1ns'49 extending from frame 15,

52, whose curved sharp arms loosen and bring down the earth so that the buckets 32 need not do much digging in order to get full as they pass the lower end of frame 15.

-on it and a crossed belt 54 and a pulley 55. fixed on one end ofshaftQS. Shields (not shown) are used to kee said pulleys and belt and the gears 343 5E-o1n getting damaged by the sand and earth. a

56 is one of several supporting arms which transportation of the machine, but when the machine is in use they are each held by a bolt-57 and each of them carries a screw 58, which makes the arm fadjustableto a supporting block 59 placed on the ground.

nine 12.- in which itis held by trunnionpivoted at I7=and supgorted bythcbracing' oted at 60 to the uprights 9 and snpporied posit it at 33 u on the eonveyer 16, which conveys it. to 't 1e car, as will presently be r is journaled the shaft 51 of a digging wheel Said shaft 51 is turned by a pulley 53, fixed The second eenveyer has its frame 1-6 pie- 5,

PATENT OFFICE;

in said slots engage also the flattened ends 18 of the trunnion screws, so as to keep them at 24 and, moved end-wise up and down by thehand-wheel'25, retained betwecncross screw-1 threads engaging the screw so that y turn ing the wheel the conveyer will be raised and. lowered to varioi'is "positions, in which held more firmly by tightening the screws or, 5 bolts 20. said-conveyer 15 is journaled theu per shaft '17 with wheels 28 fixed 011 it,

31, on w lCl are secured a series of steel The shaft 29 is rotated byihavin a J shaft 36, whichis connected by a universal joint 32 to a shaft 38, sliding in bearings fixed on the bed plate 5 and having a key- 1 are foldable upward on joints 57 during being inc hold it in the desired position.

by two rack-bars 61, pivoted at 62 and opernaled to the posts 9 and turned byla crank 65. 66 is a dog enga ing one of t 'e tracks to 67 is a guide fixed on the post to guide the rack. One or two racks may be used, and the dog may engage either the rack or the pinion.

The frame 16 is provided wither bottom 68 inwhich are several large openings, each of which is normally closciji b a shutter 69 hin ed at 70 and held 0 ose by latches 71, fiusli with the upper side of the bottom, so that in o )eration of the machine, the frame linedaets as a glntte capable of conveying earth or sand to the cars 14, either through its outer end or through the openin after such of the shutters as may be folde down, according to the distance the car is away from'the machine, such distance being varied by moving of the machine toward the hill several times before. the long track the cars move on needs to be moved.

To insure motion of the earth in the chute without inclining the chute by an undesirable high framework, I provide the sides of it with grooves 72, -(see Figs. 5 and 7), in which are guided the edges of endlessdink-bclts73, provided with transversely-disposed fixed wings 74, which move the earti along the bottoni of the chute. The conveyor belt thus formed is stretched over rollers or vided with a bevel gear 85, driven by a bevel gear 86, (see Fig. 1), fixed on a shaft 87 ournaled in bearing 88. .And upon said shaft is keyed to slide a double-faced friction drum or member.89 having in its endhub 90 anannular groove 91, engaged b a shifterlever 92, ivoted at 93 and norma y engagnig a note 94 in a fixed segment 95, so that the friction member stands elear'of the friction member '96 fixed on the en ine shaft 44;

toward one" but whenever the,lever is hel end of the segment 95 one of the friction faces89 will be engaged by the member% and thus the screw 82 will move the frame plate Sand all machinery supported on it,to

- and from the hill under excavation. This motion is mainl used to enable the machine to dig away a elt of earth of considerable width along its track before the track needs to-be movedyand, as already stated, the

.shutters' 69 compensate not only for said motion by the screw 82 but also for one or two movings of the track 3 toward the hill. The lever 92 may also be used very conveniently to increase the pressure of the di ging devices ro er against the. ound w en so re uired? affd to withdraw t e diggers when t e ground in front of them slides down faster than the machine can remove'it.

-When the machine is to be trans orted on railwa s, the conveyers are turned in lon it-udina direction of the platform 4 and t e rails of the road. This is done by removing the bolts 6 and attachin a cable or rope 97 to a horn 98 on the bed p ate, the rope is then taken over a pulley 99, turning on a-post 100 fixed on the platform, and then taken a few turns around the shaft 44 of the engine, and as the latter is started up while a person gathers in the rope at 97*, the plate 5, which may also be called a turn-table, turns on the stem 4 to some extent, and then the rope is placed on the horn 98 and the engine applied again until the eonveyer frames occupy a longitudinal central osition of the platform, so as ,to pass t rough tunnels and wherever else an ordinary train can move the turn table is then temporarily secured to the platform by insertin some of the bolts 6 through their regular ho es in the table and holes 101 in the platform. And when the turn-table is to be returned to its normal position the rope is put in the position 97 so it turns the table-1n the op osite direction. During the turning of the ta le the shaft 87, its bearings '88, engine belt 42 and shaft 36 are detached and'placed upon the platform.

Having thus described my invention, what I claim is 1. An excavating machine comprising in combination, a body or latform having wheels adapted to stand and move on rails, a

turn-table mounted thereon, and means 'for securing it in different ositions, a frame guided to slide horizontal y on the turn-table and having uprights, an endless inclined elevator supported buckets adapted to dig and convey earth up the incline, a conveyer or chute receiving the earth from the elevator and delivering it into cars at the opposite side of the machine, .an engine carried by the machine, and means operated by the engine fordriving said-elevator and conveyor and for feeding the slid-.

ing frame back and forth.

y said uprights and having 2. An excavating machine comprising in combination, a body or" latform having wheels adapted to stand an move on rails, a-

turn-table mounted thereon, and means for securing it in different positions, a frame guided to slide horizontally on the turn-table and having uprights, an endless inclined ele- .vator supported buckets adapted to dig and convey earth up y said uprights and having the incline, a conveyer or chute receiving the earth from the elevator and delivering it into cars at'jthe o osite side of. the machine, an enginescarrie y them aehine, and means operafeT'T-ythe forsdii'vingsaid elevator n earth fromthe elevator and delivering it into cars at the opposite side of the machine, an

engine carried by .the machine, and means operated bythe engine for driving said elevator andlconveye'r and for feeding the slidiug frame-back and forth, said conveyer comprising a chute with several shutters in the oottom, and an endless uided conveyer belt or belts with blades a apted to move the ear'th'along in the chute to the end of it, or to such shutteras may be open.

4. din excavating machine comprising in combination, a body or latform having wheels adapted to stand an move on rails, a turn-table mounted'thereon, and means for securing it' in different ositions, a frame guided toslide horizontal y on the turn-table and having upri hts, an end-less inclined elevator supportediy said uprights andhaving buckets adapted to dig and convey earth up the incline, a conveyer or chute receiving the earth from the elevator and delivering it into cars at the opposite side of the machine, an engine carried by the machine, and means operated by the engine for driving said elevator and conveyer and for feeding'Tthe sliding frameback and forth, and means carried by the sliding frame for changing the incline of the elevator and 0f .the chute. 5. An excavatingmachine comprising in combination, a body or (platform having wheels adapted to stand an move on rails, a

turn-table mounted, thereon, and means for securlng it 1n different positions, a'frame guided to slide horiaog tally on the turn-table and having uprights, an endless inclined elevator supported by said uprights and having buckets adapted to dig and convey earth up the incline, a conveyer or chute receiving the earth from the elevator and delivering it into cars at the opposite side of the machine, an

engine carried by the machine, and means operated by the engine for driving said elevator and conveyer and for feedin the sliding frame back and forth, journa bearingson the turntable, a shaft sliding therein and having a universal {oint whereby a portion of it may be inclinet, gear-wheels connecting said inclined portion with one of the shafts of the endless elevator, a pulley slidingly keyed 0n the shaft, and a belt thereon receiving motion from the engine, and means for retaining the pulley in line with the belt when the shaft slides.

6. An excavating machine comprising in combination, a body or platform having wheels adapted to stand and move on rails, a turn-table mounted thereon, andmeans for securing it in different positions, a frame guided to slide horizontally on the turn-table and having uprights, an endless inclined elevator supported by said uprights and having buckets adapted to dig and convey earth up the incline, a conveyer or chute receiving the earth from theelevator and delivering it into cars at the opposite side of the machine, an engine carried by the machine, and means operated by the engine for driving said. elevator and c'onveyer and for feeding thesliding frame back and forth, said feeding mechanism comprising a screw journaled intheturn-table and engaging the sliding frameto move it, operative connection between said screw and the engine, and a friction clutch mechanism interposed in the operative con nection, and a lever by which the operator controls the friction mechanism. i In testimony'whereof I afiix my signature, in presence of two witnesses.

TORGELS REISTAD.

Witnesses:

A. M. CARLSEN, D. E. CARLsEN. 

